Bio

Dr. El-Shafei earned his B.Sc. in Chemistry with Honors and his M.Sc. in Organic Chemistry from Mansoura University, Egypt. He earned dual doctoral degrees in Chemistry and Fiber and Polymer Science from North Carolina State University in December 2002.

Following his graduation from NC State, Dr. El-Shafei worked as a Postdoctoral Research Associate and subsequently as a Research Assistant Professor. His research spanned a broad range of areas, including molecular modeling of polymers, dyes, dye–polymer and UV absorber–dye–polymer intermolecular interaction systems, with an emphasis on thermal stability and photostability and on elucidating thermal and photodegradation mechanisms. His work also focused on low-energy cotton bleaching, the synthesis and characterization of functional materials, and the development of nonthermal, high-density glow-discharge atmospheric plasma-induced graft polymerization techniques. These approaches were used to introduce a range of functional chemistries onto polymeric substrates to impart advanced properties, including flame retardancy and omniphobic surface characteristics.

Research

El-Shafei’s research lies at the interface of polymer, dye, and fiber chemistry, with a strong emphasis on sustainability and translating molecular innovations into sustainable materials and advanced technologies for the textile industry. His research integrates fundamental chemistry, advanced manufacturing, data-driven approaches, and materials engineering to address challenges in sustainable textile production and functional materials.

Research thrusts include:

• Halogen-Free Flame-Retardant Polymers for Protective Textiles: Development of novel halogen-free flame-retardant polymer systems for woven and nonwoven cotton, polyester, nylon, polypropylene, and fiber blends to produce high-performance protective textiles. This research focuses on elucidating the molecular mechanisms governing flame retardancy, char formation, and self-extinguishing behavior, while investigating how different flame-retardant polymer structures interact with and perform on fibers with different chemical compositions.
• Waterless Atmospheric Plasma-Induced Graft Polymerization: Development of waterless surface-functionalization technologies to produce halogen-free flame-retardant and PFAS-free omniphobic textiles while reducing conventional wet chemical processing.
• Cellulosic Fiber and Fabric Modification for Sustainable Dyeing: Development of novel chemical and processing strategies to enhance dyeability, reduce chemical, energy and water consumption, and enhance the sustainability of cellulosic textile dyeing.
• Machine Learning and Computational–Experimental Integration: Integration of machine learning, computational modeling, and experiments to accelerate the discovery, thermal stability and photostability and optimization of polymers, dyes, fibers, and sustainable textile technologies
• Low-Temperature Cotton Bleaching: Development of energy-efficient bleaching technologies that reduce chemical consumption, processing temperatures, and the environmental footprint of cotton processing.

Area(s) of Expertise

Analytical Chemistry
Dyeing and Finishing
Polymer Science
Polymer/Fiber/Textile Processing
Sustainability